Barack Obama went further [than George Bush] by claiming the power not merely to detain citizens without judicial review but to assassinate them. He has waged an unprecedented war on whistleblowers, dusting off Wilson's Espionage Act of 1917 to prosecute more than double the number of whistleblowers than all prior presidents combined. And he has draped his actions with at least as much secrecy, if not more so, than any president in US history.
